Machine



2 Sheets-Sheet 1.

(No Model.)

A. WOODMAN. CLOTH TENTERING, DRYING, AND CALENDERING MACHINE. No.253.806. I Patented Feb.14,1882.

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WITNESSES: INVENTOR:

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N. PETERS. PhoQfl-Lilhogmphcr. Washmglon. D. C.

2 Sheets-Sheet 2.

(No Model.) A. WOODMAN.

CLOTH TENTBRING, DRYING, AND UALENDERING MACHINE.

Patented Feb. 14,

2 m Y T B N N E R V O T N T T. A JN 1 MI Q J M u o t. N N fl M a W M I.6 I h I 1 LT F u WITNESSES N4 PETERS. Plwwmhn ra hm. Washinglon. D. c.

ALVIN VVOODMAN, OF LEWISTON, MAINE, ASSIGN OR TO HIMSELF AND CYRUS I.BARKER, OF SAME PLACE.

CLOTH TENTERING, DRYING, AND CALENDERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 253,806, dated February14, 1882. Application filed March 14, 1881. (No model.)

To all whom it may concern:

Be it known that I, ALVIN WOODMAN, of Lewiston, in the county ofAndroscoggin and State of Maine, have invented a new and usefulImprovement in Cloth Tentering, Drying, and Oalendering Machines, ofwhich the fol; lowing is a full, clear, and exact description.

My improvements relate to machines used for drying, tentering, andcalendering woven gitudinal section of a tentering, drying, and

calendering machine containing my improvements. Fig. 2 is a verticaltransverse section of the same on line 00 w of Fig. 1. Fig. 3 is apartial plan view, showing the straighteningrolls. Fig. 4 is a face viewof the straigh tening-rolls. Fig. 5 is a section 011 line 3 y of Fig. 3.Fig. 6 isa detail sectional View. Fig. 7 is a detail of ,a modification;and Fig.8 is a plan view of the machine, with some of the parts omittedor broken away, showing principally the tentering mechanism and amodified form of driving-gear.

Similar letters of reference indicate correspending parts.

The frameA of the machine is of usual character. At the feeding end isplaced a roll, a, which carries the cloth.

b is the spreader. c is the size-box. (Z (Z are squeezing-rolls. c c arecarrierrolls by which the cloth is held to the surface of cylinders e,the latter revolved by the friction of the cloth. These parts are asusual, except the spreader Z1, which consists of two semicircular bars,6 of metal or other suitable material, attached to end pieces, I), thatare pivoted in suitable bearings, so that the bars are held parallel andmay turn with the end pieces, I).

A ratchet-wheel, 0 (shown in Figs. 1 and 8,) is fitted to one pivot ofthe spreader, and is engaged by a pawl, (1 for retaining the spreaderinposition. This allows adjustment, so that the cloth will bear upon moreor less of the surface of the bars b thereby varying the friction, asthe case may require. The spreader-bars are fluted diagonally from thecenter outward.

From the cylinders to the straightening mechanism at the other end ofthe frame two endless chains, B, are provided for carrying the cloth.The chains consist of flat links jointed together, and are carried by'chain- 5 wheels 9, that are hung at the sides of the machine. The linkshave spurs or points, as shown, for catching the edges oi the cloth, andthey are formed with slots for engagement with the teeth of chain-wheels9. There are revolving brushes h fitted above the chains for pressingthe cloth upon the pins. These are placed at the point where the clothand chain come together in contact with the face of the links.

The chains B are supported on tracks or guide-strips k, that rest onbrackets 70, secured to the side rails of the machine, as shown clearlyin Fig. 2. The guide-strips 7c are grooved to receive the chains, andare constructed in two sections at each side, the first section at eachside extending obliquely outward from the feed end, and the secondsections extending parallel, so that the cloth -is first widenedgradually andthen retained at the full width.

For adjustment of the guides and tracks I provide screw-shafts Z, whichare sustained by the siderails of the machine beneath and across thestrips 70 and carry nuts 1 Z, which are connected to the guide-tracks.The shafts have right-and-left-handed screws, and are fitted withhand-wheels l for their operation. There are three of thesescrew-shafts, one at the feed ends of the tracks, one at the deliveryend, and a third at the inner ends orjunction of the 5 two sections,fitted to move those ends of both sections at each side. The shaft atthe feed end is for adjustment of the narrower end of the track. Theshaft at the delivery end carries a bevel-pinion, engaging with asimilar pinion on a shaft, 1 that extends to and is geared with themiddle shaft, 1. This allows simultaneous adjustment of both ends of theparallel tracks and the wider ends of the diagonal tracks at oneoperation.

In Fig. 1 I have shown the chain-wheelsdriven by pulleys g and belts groll to being also driven by a belt, from pulley 9 but I shall also usethe means shown in Fig. 8, and also partly shown in Fig. 7, where thechain-wheels are loosely mounted on long sleeve-nuts that are carried bythe shaft 1 at the delivery end of the machine. An arm, 1*, attached tothe nut 1, passes to the guide 7r, whereby the guide and wheel areadjusted simultaneously by turning the shaft. The chain-wheel g atthedelivery end is formed with a gear-wheel, l, which is adapted to meshwith a bevel-pinion, Z, on a shaft, 1 by which power is communicated tothe chain-wheels.

The shaft 1 should be made laterally adjustable to accommodate theadjustment of the guide 70 and the wheel 1 It is designed that eachchain-wheel at the delivery end of the machine shall be driven in likemanner.

There are steam pipes or coils 1' arranged be low the tracks andconnected with a steamgenerator for drying the cloth while it is beingcarried forward, or fans 0 may be used for ere ating a current of air toeffect the drying.

At the delivery end of the machine are the drying-cylinders 0 o,calender-ingrolls S S, and cloth-winding rollers 10, as usual. Betweenthe cylinderso and the ends of chains B is fitted the mechanism forstraightening the figure of the cloth, as next described.

m m are the first guide-rollers, sustained at their ends in fixedbrackets, the bottom of roller on being level with the tracks and rollerm elevated.

at n are guide-rolls hung on side arms, n that are pivoted at the lowerpart of frame A. A screw, 12, fitted at each side of the machine andtapped into the arm a serves for adjustment of the arm and rollers n nto and from rollers n m. Roller n is level, or nearly so, with roller mwhile roller n is lower and retains the cloth against the first cylinder0.

Between the guide-rollers m a are numerous short rollers, 'r, placed asclosely together as may be across the machine. These are carried in theforked outer ends of flexible or jointed arms r, sustained by a crossrod or bar,

s, that is held at its'ends in brackets. Springs 20! tend to raise thearms 0', and screws t, tapped in a cross-bar, I, serve for holding thearms down as adjusted. These parts are shown most clearly in Figs. 3 and5. With this construction the rollers r are held always in one verticalplane transversely of the machine, while being capable of adjustmentvertically, as illustrated in Fig. 4.

In operation the cloth passes from the chains beneath roller m, thenbeneath and over roller m, beneath rollers 1*, over roller n, and beneath roller n to the steam-cylinders. The guiderollersnn act to bringthe plaid or stripe on the cloth into position at right angles with theside of the cloth, in case it has been thrown out by the tenteringpreviously. This is accomplished by adjusting the arm n to throw forwardthe ends of rollers n n at the side of the machine, where the stripe orplaid needs to be brought up. The rollers 1" act to straighten theplaids or stripes, it required. If the stripes are straight when theyreach rollers 1', such rollers should then be set on a horizontal line,either in or out of contact with the cloth; but if the stripes or plaidsare curved, or otherwise out of a straight line, the rollers, 0' will beset so that those at the ends bear on the cloth and the middle rollersfree, or the reverse, as is required to straighten the figures.

The two sets of adjustable rollers n n and 1' thus act, the first tobring the edges of the cloth up and the second to straighten the clothbetween the edges, and the cloth is delivered to the calendering-rollswith the figure 0 correct, as designed.

A single flexible roll. may be used in place of the rollers r. I do notlimit myself in that respect, nor in the particular details ofconstruction otherwise.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combinatl0n,wltl1 roll a,of the spreader,consisting essentially of bars b diagonally roo fluted in oppositedirections from the middle, and pivoted end pieces, b, provided with aratchet-wheel, c and pawl (1 substantiallyas and for the purposesdescribed.

2. The combination, with the wheels g, end- 1 less chains B,and trackslc,of the screw-shafts 1, nuts I, shaft Z and its gearings, andmechanism for driving the wheels g, substantially as shown anddescribed.

3. The combination, with the cylinders 0 and 11 o rollers r, of therollers n n, winding-drum w, and the pulleys g and belts g,substantially as shown and described.

4;. The combination of rollers r and mechanism for their verticaladjustment, with rollers 1 15 m a, substantially as and for the purposesspecified.

5. The combination, with the guide-rollers n n, the rollers r, and linedguide-rollers m m, of mechanism for adjusting the rollers anhorizontally and rollers 1' vertically, as and for the purposes setforth.

6. The combination of arms 1", spring w, adjusting-screws t, rollers r,guide-rollersn n and m m, poses specified.

Witnesses:

M. T. LUDDEN, F. M. DREW.

ALVIN \VOODMAN.

substantially as and for the pur-

